How to Active matrix?

OLED active matrix cell designed for optimal uniformity,Fabrication Process Using Circuit-on-Wire,Ultrasound breast screening device,Liquid crystal display device and voltage detection method of optical sensor

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Active matrix is a type of addressing scheme used in flat panel displays. In this method of switching individual elements (pixels), each pixel is attached to a transistor and capacitor actively maintaining the pixel state while other pixels are being addressed, in contrast with the older passive matrix technology in which each pixel must maintain its state passively, without being driven by circuitry.

OLED active matrix cell designed for optimal uniformity

InactiveUS20070236440A1Static indicating devicesDriver circuitTime domain

A drive circuit is provided for an OLED pixel display. The drive circuit is adapted for use with a reference voltage source. It includes a first transistor and an OLED. The output circuit of the first transistor is operably connected between the reference voltage source and the OLED. Transmission gate means responsive to a control signal are provided to transmit a data signal to the first transistor. Means are provided for controlling the first transistor in accordance with a time domain modulation signal to provide an average current to the OLED which is a function of the data signal.

OLED active matrix cell designed for optimal uniformity

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Owner:EMAGIN CORP

Fabrication Process Using Circuit-on-Wire

ActiveUS20150221671A1Solid-state devicesSemiconductor/solid-state device manufacturingActive matrixElectrical connection

A method is provided for forming a circuit-on-wire (CoW) assembly. The method forms a flexible line with a plurality of periodic alignment marks used as a guide to place CoW devices overlying a surface of the flexible line. The CoW devices may be LEDs, capacitors, diodes, photodiodes, resistors, thin-film transistors, or combinations of the above-listed elements. The flexible line may be a conductive material, such as a metal wire, and the periodic alignment marks may be vias formed through the wire. If the flexible line is electrically conductive, an electrically conductive adhesive may be applied to the electrically conductive line, so that an electrical connection is formed between the CoW devices and the electrically conductive line. Subsequent to placing the CON devices, processes may be formed on the flexible line and CoW devices such as lithographic etching and thin-film deposition. An active matrix array using CoW devices is also presented.

Owner:SHARP KK